MOA 2017-BLG-387

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Event Parameters

Internal ID:	gb17-R-1-39908
Discovery date:	2017-07-17T18:44:35
RA:	18:11:27.74
Dec:	-26:41:40.71
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
108479	18:11:27.48	-26:41:41.46	18.45 ± 0.08	4.43
108528	18:11:27.58	-26:41:37.43	17.48 ± 0.06	4.07
108566	18:11:27.64	-26:41:42.89	18.32 ± 0.07	3.50
108638	18:11:27.88	-26:41:37.79	15.56 ± 0.02	2.82

Last 5 photometry measurements

Observation date	I mag	seeing
2460570.962 (2024-Sep-17.462)	18.10 ± 0.46	3.87
2460571.002 (2024-Sep-17.502)	17.78 ± 0.31	4.61
2460571.035 (2024-Sep-17.535)	18.16 ± 0.56	4.84
2460572.901 (2024-Sep-19.401)	18.61 ± 0.66	4.35
2460572.948 (2024-Sep-19.448)	18.03 ± 0.31	4.19

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 0.00)

Single lens fit parameters

t_max	=	JD 2457951.24	±	0.05 UT (2017-Jul-16.74)
t_E	=	29.14	±	6.73 days
u₀	=	0.0587	±	0.0237
I_base	=	20.01	±	0.17

External data

Gzipped FITS finder chart

All photometry data

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